In light of the many recent (and unfortunate) attacks by sharks, and to honor shark week, here's an amazing and terrifying fact about great white sharks: they can reportedly detect a single drop of blood in 25 gallons of water! Even more terrifying? They can detect small amounts of blood from up to 3 miles away!
Between this and the video from my earlier post showing just how large a great white shark can get, I think I'll be swimming indoors for a while....
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